Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1975-10-03
1977-09-20
Weakley, Harold W.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
1374946, 137538, 13754323, F16K 4300
Patent
active
040490149
ABSTRACT:
A cartridge type sleeve and plunger hydraulic valve is retained in a blind bore along with a biasing spring by a closure plug. Spaced transverse passages intersecting the bore are either separated or connected depending upon whether the plunger is either shifted by the spring bias or by fluid pressure overcoming the spring bias. An elastomeric seal eliminates leakage when the valve is in closed position. To insure against accidental fall out of any loose parts when the valve is disassembled under difficult working conditions, as in mines, O-rings are utilized as retainers for the spring and other parts.
REFERENCES:
patent: 2845085 (1958-07-01), Robbins
patent: 3482594 (1969-12-01), Simon
patent: 3640304 (1972-02-01), Fox
patent: 3831621 (1974-08-01), Anthony
Johnson Gary L.
Zoya Walter J.
Sperry Rand Corporation
Van Meter Theodore
Weakley Harold W.
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